The Mozaic template is built for landing page purposes but can be adapted to any website profile. The layout contain room for a countdown script, menu, a slideshow for products previews, a contact / purchase form and a big footer. The layout use the 960 grid system. In case you are looking for a sliced and HTML integrated version of this free PSD file, then with you can buy it for just $8 from ThemeForest.
The PSD file contain a full layered layout for all elements.